<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 3//EN">
<HTML><HEAD>
		<TITLE>User's Reference - Echo</TITLE>
		<META HTTP-EQUIV="keywords" CONTENT="GRAPHICS VISUALIZATION VISUAL PROGRAM DATA
MINING">
	<meta http-equiv="content-type" content="text/html;charset=ISO-8859-1">
</HEAD><BODY BGCOLOR="#FFFFFF" link="#00004b" vlink="#4b004b">
		<TABLE width=510 border=0 cellpadding=0 cellspacing=0>
			<TR>
				<TD><IMG src="../images/spacer.gif" width=80 height=1></TD>
				<TD><IMG src="../images/spacer.gif" width=49 height=1></TD>
				<TD><IMG src="../images/spacer.gif" width=24 height=1></TD>
				<TD><IMG src="../images/spacer.gif" width=100 height=1></TD>
				<TD><IMG src="../images/spacer.gif" width=3 height=1></TD>
				<TD><IMG src="../images/spacer.gif" width=127 height=1></TD>
				<TD><IMG src="../images/spacer.gif" width=6 height=1></TD>
				<TD><IMG src="../images/spacer.gif" width=50 height=1></TD>
				<TD><IMG src="../images/spacer.gif" width=71 height=1></TD>
			</TR>
			<TR>
				<TD colspan=9><IMG src="../images/flcgh_01.gif" width=510 height=24 alt="OpenDX - Documentation"></TD>
			</TR>
			<TR>
				<TD colspan=2><A href="../allguide.htm"><IMG src="../images/flcgh_02.gif" width=129 height=25 border="0" alt="Full Contents"></A></TD>
				<TD colspan=3><A href="../qikguide.htm"><IMG src="../images/flcgh_03.gif" width=127 height=25 border="0" alt="QuickStart Guide"></A></TD>
				<TD><A href="../usrguide.htm"><IMG src="../images/flcgh_04.gif" width=127 height=25 border="0" alt="User's Guide"></A></TD>
				<TD colspan=3><B><A href="../refguide.htm"><IMG src="../images/flcgh_05d.gif" width=127 height=25 border="0" alt="User's Reference"></A></B></TD>
			</TR>
			<TR>
				<TD><A href="refgu050.htm"><IMG src="../images/flcgh_06.gif" width=80 height=17 border="0" alt="Previous Page"></A></TD>
				<TD colspan=2><A href="refgu052.htm"><IMG src="../images/flcgh_07.gif" width=73 height=17 border="0" alt="Next Page"></A></TD>
				<TD><A href="../refguide.htm"><IMG src="../images/flcgh_08.gif" width=100 height=17 border="0" alt="Table of Contents"></A></TD>
				<TD colspan=3><A href="refgu009.htm"><IMG src="../images/flcgh_09.gif" width=136 height=17 border="0" alt="Partial Table of Contents"></A></TD>
				<TD><A href="refgu175.htm"><IMG src="../images/flcgh_10.gif" width=50 height=17 border="0" alt="Index"></A></TD>
				<TD><A href="../srchindx.htm"><IMG src="../images/flcgh_11.gif" width=71 height=17 border="0" alt="Search"></A></TD>
			</TR>
		</TABLE>
		<H3><A name="HDRECHO" ></A>Echo</H3>
		<A NAME="IDX473"></A><A NAME="IDX474"></A>
<P><STRONG>Category</STRONG>
<P>
<A HREF="refgu008.htm#HDRCATDBG">Debugging</A>
<P><STRONG>Function</STRONG>
<P>
Echoes a message.
<P><STRONG>Syntax</STRONG>
<PRE>
Echo(<STRONG>string, ...</STRONG>);
</PRE>
<P><STRONG>Inputs</STRONG>
<BR>
<TABLE BORDER>
<TR>
<TH ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">Name
</TH><TH ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">Type
</TH><TH ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">Default
</TH><TH ALIGN="LEFT" VALIGN="TOP" WIDTH="40%">Description
</TH></TR><TR>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%"><TT><STRONG>string</STRONG></TT>
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">value list or string list
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">no default
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="40%">message to be printed
</TD></TR><TR>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%"><TT><STRONG>...</STRONG></TT>
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">&nbsp;
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="20%">&nbsp;
</TD><TD ALIGN="LEFT" VALIGN="TOP" WIDTH="40%">additional messages to print
</TD></TR></TABLE>
<P><STRONG>Functional Details</STRONG>
<P>
This module prints its arguments as a string.
<TABLE CELLPADDING="3">
<TR VALIGN="TOP"><TD><P><B><TT><STRONG>string</STRONG></TT>
</B></TD><TD><P>is the value to be echoed.
</TD></TR></TABLE>
<P>
A single Echo module can echo a maximum of 21 strings.
In the user interface, the default number of enabled
<TT><STRONG>string</STRONG></TT>
tabs is two.
(Tabs can be added to the module icon and removed with the appropriate
<TT><STRONG>...Input Tab</STRONG></TT> options in the
<TT><STRONG>Edit</STRONG></TT> pull-down menu of
the VPE.)
<P>
The module can print:
<UL COMPACT>
<LI>Integer, float, and string values
<LI>Integer, float, and string lists
<LI>2-D and 3-D vectors.
</UL>
If the input is of another type, the module will echo the
object class (e.g, "Field").
<P>
In the user interface, the output of Echo appears in the Message window.
<P><STRONG>See Also</STRONG>
<P>
&nbsp;<A HREF="refgu106.htm#HDRPRINT">Print</A>,

&nbsp;<A HREF="refgu046.htm#HDRDESCRIB">Describe</A>
		<P>
		<HR>
		<DIV align="center">
			<P><A href="../allguide.htm"><IMG src="../images/foot-fc.gif" width="94" height="18" border="0" alt="Full Contents"></A> <A href="../qikguide.htm"><IMG src="../images/foot-qs.gif" width="94" height="18" border="0" alt="QuickStart Guide"></A> <A href="../usrguide.htm"><IMG src="../images/foot-ug.gif" width="94" height="18" border="0" alt="User's Guide"></A> <A href="../refguide.htm"><IMG src="../images/foot-ur.gif" width="94" height="18" border="0" alt="User's Reference"></A></P>
		</DIV>
		<DIV align="center">
			<P><FONT size="-1">[ <A href="http://www.research.ibm.com/dx">OpenDX Home at IBM</A>&nbsp;|&nbsp;<A href="http://www.opendx.org/">OpenDX.org</A>&nbsp;] </FONT></P>
			<P></P>
		</DIV>
		<P></P>
	</BODY></HTML>
